I heard a quack towards the end but I thought it was from Daphne? You might be right though. I know my two 4 week old ducklings are girls. One is sex-linked and one has been making girl sounds since she was two weeks old (she also has two-toned feathers coming in above her tail). But, they still sound very similar to these. The lighter, lavender duckling in the back, just started her voice change in the last day. Most of the time she still peeps.@cheezenkwackers didn't you think Niles sounded a lot like Daphne?